P2 Physics - Forces and distance/time graphs Flashcards Preview

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Flashcards in P2 Physics - Forces and distance/time graphs Deck (14)
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1

what are speed and velocity both measured in?

m/s

2

define speed

how fast your going

3

define velocity

how fast you are going but with the distance specified: eg 30mph north

4

what does the gradient of a D/T graph tell you

how fast your object is travelling

5

gradient =

speed

6

flat sections =

object stopped/stationary

7

striaght uphill or downhill =

travelling at steady speed

8

curves represent...

acceleration or deceleration

9

a steepening curve =

speeding up

10

leveling off curve =

slowing down

11

what is resultant force?

object has different forces acting upon it
they can be added up to make the resultant force

12

what happens to an object that has resultant force acting upon it

it will change its velocity

13

if the resultant force of an object is zero, what will happen?

the object will remain stationary

14

if there is no resultant force on a moving object what happens to its velocity?

it'll carry on moving at the same velocity